There is a 1000 sqft home in new england that has a second floor with 2 bedrooms and a bath in the center. I am curious, there is a small attic, but I was thinking about removing it and making cathedral ceilings in both bedrooms (obviously so it appears larger). My question is, is this a dumb move? Does the attic help retain heat in the winter and reflect in summer? any suggestions would be appreciated...

Thanks in advance!
Dan